Rhodium(III)-Catalyzed C–H Olefination for the Synthesis of <i>ortho</i>-Alkenyl Phenols Using an Oxidizing Directing Group
作者:Yangyang Shen、Guixia Liu、Zhi Zhou、Xiyan Lu
DOI:10.1021/ol4014188
日期:2013.7.5
By using an oxidizing directinggroup, a mild, efficient Rh(III) catalyzed C–H olefination reaction between N-phenoxyacetamides and alkenes was developed. This reaction provided a straightforward way for the synthesis of ortho-alkenyl phenols, and the directinggroup is traceless in the product.
Herein, we have designed and demonstrated a copper-catalyzed intramolecular SEAr reaction−oxidation process to access styryl-/alkenyl-substituted xanthone derivatives. This protocol affords a variety of substituted xanthone derivatives in moderate to high yields. The protocol has been demonstrated by gram-scale syntheses.
在此,我们设计并展示了一种铜催化的分子内 S E Ar 反应-氧化过程,以获得苯乙烯基/烯基取代的氧杂蒽酮衍生物。该协议提供了多种中等至高产率的取代氧杂蒽酮衍生物。该协议已通过克级合成得到证明。
[EN] COMPOSITIONS AND METHODS FOR TREATING TRINUCLEOTIDE REPEAT DISORDERS<br/>[FR] COMPOSITIONS ET PROCÉDÉS POUR TRAITER DES MALADIES À EXPANSION DE TRIPLETS
申请人:MASSACHUSETTS INST TECHNOLOGY
公开号:WO2007124171A2
公开(公告)日:2007-11-01
[EN] This invention relates to compositions and methods for treating disorders resulting from protein-misfolding. We describe exemplary compounds, which may be contained in pharmaceutical compositions, the screening methods by which they were discovered, and their use as therapeutic or prophylactic agents. [FR] L'invention concerne des compositions et des procédés pour traiter des troubles résultant d'un mauvais repliement de protéines. Cette invention se rapporte en outre à des composés exemplaires qui peuvent figurer dans des compositions pharmaceutiques, aux procédés de criblage qui ont permis de découvrir ces composés, ainsi qu'à l'utilisation desdits composés en tant qu'agents thérapeutiques ou prophylactiques.
Syntheses and platelet aggregation inhibitory and antithrombotic properties of [2-[(.omega.-Aminoalkoxy)phenyl]benzenes
A series of [2-[(omega-aminoalkoxy)phenyl]ethyl]benzene derivatives were synthesized and evaluated for their ability to inhibit collagen-induced platelet aggregation in vitro and to protect experimental thrombosis in mice. The results showed that the compounds were in vitro inhibitors of collagen-induced platelet aggregation. Most of them were also effective in the mouse antithrombotic assay. The compounds